The Casio VZ-10M is a rack mount version of the VZ-1. The VZ-1 is a full-sized, 5-octave, velocity & pressure sensitive keyboard utilizing the IPD tone generation (a type of Phase Distortion synthesis) and offers 16 note polyphony.

Extended information

It's a digital synth capable of some great strings and "polite 80's sounds". You could use up to four sounds for splits, layers, velocity, cross-fades, etc. It has a large, blue, back-lit LCD display for editing patches. Editing is in-depth and quite a different approach than other synths before it. Its sounds are akin to the Casio CZ-series and sort of Yamaha DX-like. It's not particularly cool, but it looked impressive in its day with the blue back-lit graphical display.

Technical specifications

# Polyphony - 16 voices
# Oscillators - IPD tone generator w/ 8 waveforms (DCOs similar to the CZ series)
# Arpeg/Seq - None
# LFO - 1 per voice
# Filter - No Filter
# VCA - Uses DCAs similar to the CZ series
# Effects - Delay
# Keyboard - 61 keys with velocity and aftertouch, 3 wheels
# Memory - 64 preset, 64 user patches, 64 patch external cartridge
# Control - MIDI (8-part multitimbral)

Information above is courtesy of www.vintagesynth.com